Displacement-pump.



E. A. WATTS (Q l. L. DUNN.

DtSPLACEMENT PUMP.

APPLiCATlON map APR. x9, 19x5.

Patented Nov. 28, 1916.

3 suns-sue I.

a, Dump.

w E. A.IWATTS & I. L. DUNN.

DISPLACEMENT PUMP.

AFPUCATION FILED APR-19, 191s.

' 1,206,065. Patented Nov. 28, 19m.

3 SHEETS-SHEET 3.

96 QvMH/MLQ. i y

Be itplmownthat we, 'ELMIJR A. Wivr'rs aml-lnw x L. DUNN, citizens ofthe United States, residing at Springfiddfllarl: coi nt'y, ai icli:i\l;uiette,' Washington county, Ohio,

-i"es1- ecti= vely, have invented certain new and: .usefiil Improvementsin Displacement- Pu1nps,-. of' which the following; is a spec-1*fiCll-liiOl-1{TGLEGX'GHCB being had therein to the,

EEQQODIDHDylHE drawing. This .-,in\ ex1ti( m ,i'elates punips and is-inthe. nnture of ii, further'dtivelo niient of the invention ei'nbodiedin'the ligation tor pntent.'filed by usMzuch 8th, e1; No.'12,7-95 onwhich Letters Patent 1,1,"(g579wvere granted June 20, 1916.

" The'jdisplace 'nent pinup shown and describedi-inetlmt applicationoperatesin a manner which is entirely satisfactoryin so great-121s"to be'toit degree objectionable.

'lhe object oithe present invention is top toviid '1 displacement pumpwhich will elevate .(unntity of fluid to a greatheight I with i}.-1'elzi'tivelyv low air pressure To this; end itiis 2 furtherohject ofthe in vention; :to, provide g ctei'. i n mrhidh the-"oiL-oi other fluidwill be 4 relayed, to the top of the ve It. 1's 'iilS0; -zn1 oh ect ofthe. invention to p i-oviden ea-ns for so controlling the admisiifcs toenable -the expansion ofthe 'bo. utilized",-.for lilting" the, fluidtlnoiigh the -lntter part of its-movement, therebyeuntemall'yreducingthe amount 0t.

midi;

In. ncoitnnpunying drawings, Figure 1 t I a s de elevation .ofa,displacement pump h s ouu'ini'ent-i'on showing the same IQJfQOfiI. 011-11- the well;;F1g. 21s a, vertical,

sect-ioi hzljvieit off the upper portion of such B; pumppJEi-g; B is asimilar view ofthe lower portion of the pump and. constitutes 'acontinuntionof Fig. Fig. his a side elevation, pai'tly. in section, ofthe 'controL ling deyice ;-'l?ig-;, 5 is nsoctio-n'al, detail View ofthez-nppel. 'endof-one of the fluid 'recepta-cles-gsho i 'iie the meansfor peiniitt ing the sn 'plnsiiuid; Fig. 6' is a-section'al,

det: f the. oombined. .in let and eit- 7 and S lllnstraite 1n haust'vat-lie; and Figs.

to displacement piessnl e'necessarv to lift the :1: pump of this.chzurthe [pum p and its exhaust "l to;elevg 1te a given quantity of alever 17 i with it counterweight 20 1mg connected with a wirehistmosmnnhrfima Specification of Lettezs Patent.

. 1. side eleyation, partly in section, a modified form of theinvention.

' In. these drawings we embodiments of our invention and shown theszunens emhodiedin structures similar in the main fezituresto th et shownfn hiwe illustrated two.

next. to

-- i im in t n.. iirn'rrreos-sien nei intn, Aiin IRWIN Dim-moi?MABIETTA; onto;

Patented Nov. 28, 1am;

Api umionfi1ed'iiri11e, 1915. seriai neeeese described and clainied inthe abovelmefi tioned application for patent. It ,will be Understood,however, that the iny'ention'nmy "be embodied instructuresot-vei'ionsjlcinds aiid may he utilized for pnrposes' otlierthan the pumping of Oil. r

As here illustrated the pump embodying the invention is mounted in anoil well hiving the usual well casing 1 and provided at the lower-end ofthe casing with a pocket 2 in which the oil eccun'nilzites end from iihich it is pumped to the snrfnce' of the,

ground. Mounted in the pocket 2 and commu'nlczit ng with ,the oiltherein 155m oil neceptu-cle orcyhnder 3 having zit-"its lower oiltherefrom through the port-4;. lilxtendg i'ng'into the receptacle orcylinder 3 is' aj lower end. of which discharge pipe 6,, the

the .bot-

preferably extends tea point near tel-net the oil receptacle and theupper pore.

of which extends beyond the iippetend le- 't' he; receptncle 3.

pipe; 6 en is admitted to the upper end oi the receptacle through nflmrconduit oi piped. which extends upward through the on, To discharge theoil. from the receptacle through the discharge end an oil inlet'poi-t 4:which is pifovided. with a check'vnlve-Ev to prevent the-escapeof wcllcasing 1 and is provided at its upper end with a. controlling deviceSjiihich may jl e of "any suitable character but" is he 'e illnstnted asof thesametype shopi'ri' and};

described in tlie'nhove'inentioned applied tum, This device. need not bel erejdescnbed.

in 'Leteil; Snlliceit to say that it comprises a casing lniving tin:iir-inlet port 10 .c'om

l nslalsq an exhaust port IQ u'ranged nt'e poiiitj remote fife-1n". saidinlet port The inlet-ja-nd exhaust ports wand 12 "both com ihunicntewith a, passage 13fwhich' is conne'e d by e pipe 14 with the nppe k miof air pipe'Y. Valves 15 and 16 the inlet nd exhaust ports;'espectiifely an'dthese valves are control-led by'mezm's "oi .iirrns "l8and 21"whih extends through the air pipe- 7 and ontnol is connected withwhich-has -m is w y exte'i lii g.

s the: latter b i provided;

and the form b iich "order to avoid t a weight 22 which is mountedwithin the oil receptacle 3. As the fluid rises around the weight 22 thelatter is buoyed up until the counterbalance 20 is suflicient to rockthe lever 17 in a direction to open the inlet port and admit airthrough-the pipes 14 and 7 to the cylinder, thereby forcing the oilthrough the discharge pipe 6. As the fluid lowers around the weight thebuoyancy thereof is decreased until it is suflicient to again rock thelever against the opposing force of the counterbalance 20 to move thelever in a direction to cause the closing of the inletport 10 and theopenin of the exhaust port 12. This latter part 0 the action, however,is modified in the present device, as will be hereinafter described. Ashas been explained .the air pressure necessary to elevate the oil fromthe rece tacle 3 to the. surface of the'ground in the case of wells ofrent depth is excessive. In lie necessity for such 11 hi h air pressureand to enablethe oil-to lifted from deep wells with a relatively low airpressure, we have provided a relay system of oil receptacles,- eachofwhich is adapted to receive the oil from the next lower receptacle,thereby making it necesnary to lift the oil for comparatively shortdistances only at each step oftheoperation of the pump. As here shown, asecond receptacle or cylinder 23 is arranged above the receptacle 3 andspaced therefrom a distance determined by the air pressure which it isdesired to use. The upper end of the discharge pipe 6 communicates withthis second or next higher receptacle 23. In the resent instance itextends through the ower head of the cylinder 23 and termi;

nates jum short of the upper cylinder head. This rece tacle orcylinder23 is also providedwit a discharge pipe, 24, which commuhicatestherewith near the lower end thereof and extends upward and into a thirdreceptacle or cylinder"25 which is supportedabove the receptacle 23 andspaced therefrom a suitable distance] The cglinden25 has a dischargepipe 26 leading erefrom and .comm'unicatin either with afourthreceptacle or oylm er, or, as in the case-of the device hereillustrated, with a discharge line .27, at the top of the well.

It will be understood that. while we have shown threereceptacles orcylinders in'the present embodiment ofithehinvention this number will bedetermined by the distance 2 which it is necessary to elevate the fluidand by the'air'pressureavailable In: this em lmentof the invention theupper rec'eptacle, 25, is supported from the end-of the discharge line27, which is carrieiil by a casing head 28, by meansof rods 29 and-- thenext' lower receptacle 23 is. supported from the receptacle 25 bysimilar rods 29 likewise the lowermost receptaclet is supported from thereceptacle 23 by mean! of rods 29 so that the whole mechanismissupported by the casing head 28. Inasmuch as the cylinders or 011 recetacles are of such a size as to practically fi l the well czaing 1 theair suppl pipe 7 passes through each of the severe. cylinders. This,however, is merely a matter of convenience and is done to enable thereceptacles to be made as large as practical. It will be apparenttherefore, that when the air is.a mitted through the pipe 7 into theupperend of the lowermpst receptacle'3 the oil will he forced ouLof thatreceptacle throu h the discharge pipe 6 and into the next igherreceptacle 23. Inasmpch as the receptacles are of'substantiallythe sameca'pccit' the low'ermost receptacle will be comp etel em tied into saidnext higher recep'tac an the air will then follow frornthis low"ermostreceptacle into said neithig er receptacle and the fluid will bedischarged therefrom through the discharge pipe.24 into'the next higherreceptacle 25 and, in due course, from the receptacle 25 through thedischarge pipe 26 to the discharge line 27 at the top of the well. Ineach instance the air pressure reqiliired has only been that necessaryto lift t e oil through. the distance separatin the discharging and-reoration of the device 8 in a 'tion to'main tain the exhaust port of te valve closed. In that form of the invention shown in Figs-1 to} thelever is maintained in a po- 'sition to hold the inlet valve o as tohold the exhaust valvec osedl This n, as well is accomplished by meansof a trip arm or trigger 30 which is 'arrangedto-engage the arm 18 ofthe lever 17 and hold the same in its uppermost position,therebypreventing the lever being moved by the float as the fluid levelin thelowermostreceptacle is lowered; The trip arm 30 isgnutomaticallydisengaged from the arm 18 to permit the valve 8 to operate atthedesired time during the operation of the pump. To this end we haveinterposed in the discharge line 27 a receptacle 31 in the side wall ofwhich the'arm 30 is pivoted and which is providedwith an o'utletfpi'pe32of amallercnpa'city tha i the inlet pipe. The inlet 'pipecomfillmunic'a't'es directly with the chamber formed within the receptacle 31but its escapetherefrom to the outlet pipe 32is controlled-b11- a valve'33 which is here shown in the nature of a piston valve mounted formovement 1-nto"and out of a port 34. This valve is connectedat its upperend with a crank.

. heeiiiol tion d oesiiot talre as? or l. step. "In this theone alreadydeem;

the second receptacle 41 one hundredfeet.

shali't l-lh, whi

.lIYll'lth'ill'lS of a" 1311-14 BG Ri ith-the trip arm 30.

livo iill 'y" "connected with the crank shaft iii is a rodl'lT'earryirigatjts outer-end a fioatfiiS arranged to 'rise and fallwith the 'oil' 'in the chamber. The connections be tween' the crankshaft and the several parts areso regulated as to properly time theoperatici'i of the trip arm 30. With-the parts' in the position showninFigu-tl: the port 34: is closed and the inlet port of the device '8" isopen so that the air is entering thefp'ump. As the'fiuid in ,theuppermost receptacle 'is discharged into the. chamber of the'receptaclefil the float. will begin to Thefirst portion of its movementwill open the outlet port 34, thus permitting the escape of the oilthrough the pipe 3'3 to 'the'i eceh'ing tank. Inasmuch, however, as theinlet is of greater capacity than the outl'et'tlie receptacle willcontinue to fill and the float 38 will continue-to rise. and willeventually more the trip arm-'30 out et 'engagement with the arm 18.thus permitting the lever 17 to be actuated'by the weight 22.

the i'rilet port of the device 8 to he'closed and the exhaust portto beopened, The Ino'vemen "f the parts is so timedthat this opera placeuntil the oil has been either completely er to a'large measure dis;r'iliargedii'froin the pump; As'the oil-escapes. fronii'thereeeptacle 31after the trip arm has min-ted,- the float, w ill .n oi 'e' toward itslowe'r'mdstposition and'will thus eausethe tripi'a to hearjagainst theendzof the arm p tl1e,1 e\-'er 17 and 'whedthat arm is again jele vatedto admit the air tothe pump, the tri pfarm will engage beneath the sameand hold-lit in its elevated position.v

In Figs? and Save have shown a slightly" i'nodifid forni of the.in'ven'tihn in which pressure isutilized to discharge the the lowermostreceptacle only and qiient elevation'oi. the oil is ac d. bythe'expansion of the air. [The if the receptacles and the manner ofinhuntin g' "the,sa'ine,eorrespoml to that "lv de'scl'ibeclf with theexce 'ition that acles-are spaced apart dii'l erent this beingjilue' tothe decrease of ssur'e 'i'istthe oil is elevated step by form o'f' theinvention, as'in,

lfl lJtKl, we have illus puz'np as i'ccinprising' three re liv way ofillustratioi'i we. have 'iind-ichtedthat thelo'iverinost receptacle 40and thenext'higher receptacle 413a re spaced :\1 )art'-'.-t'wolhuhdredfeet. although in practice the two receptacles would prolmbly bespaecdapart a. much greater distance.

The th ii d receptacle is showi'i'as spaced above quantity will expand Iend and} third receptacles,

tiall t thirty-three ;but again this is suliicient; to elevate the oilcurved path which must and causes thefloa-t in, the t sixty-six andtwo-thirds feet, or a distance.

two-thirds of that which separates the sec-- 0nd and third. receptacles.

In the operation of this admitted to the lowermost cylinder 40 in acylinder and the float is 'pern'iitted to operate to cause the closingof the air inlet valve but, hymeans hereinafter described, the exhaustvalve is maintained closed, thus confining the air within the pump. Theair which is now within the lowermost cylinder and in the discharge pipeof that cylinder and will force tlie'oil from the second cylinder l1: tothe third cylinder and subsequently a further expansion'of this air willforce the oil from the third cylinder to the discharge line. Assumingthat the pu1np is operating with a one hundred pound pressure this fullhundred pounds will be used for the elevation of the oil. through. thetwo hundred feet separating the first and second receptacles. The airpressure will. then have been reduced to s\1l J v stantially-fiity'pounds, but this .is suilicient to elevate the oil through the reduceddisseparating the sec- I There is'then a further reduction of airpressure to. substanand one-thirdpounds,

tance, one hundred feet,

through the further reduced distance, sixtysiX' and two-thirds feet,separatii'ig the third receptacle from the top-of the well. "To-preventthe opening of the. exhaust port of the scribed, with a shoulderarraingcjlto engage the end of the arm 18 when the lever l'f-has beenmoved into aninterinediate position, which position will cause. the,closing of the inlet valve ivitl'iout causing the opening of the exhaustvalve. the arln extends some projection and extendsslightly into the hefollowed by the end of the arm 18 controlling receptacle I-il to act asa counterweight \-'hic.h resists the doii'nu-ard 1no,v"e lnent oft-hearm 18 and-prevents the-same from striking the projection with too greatforce. The operatron'of the controlling devlice is so timed as tolllOl'HlllH trip arni 4st out of the path of the arm 18 when-theuppermost receptacle has discharged.

1n pun-11w of this character where 1 availalile air 'ircssure.suliicient to lift a guru};hotlyof oil through a predetermined. dlstai'cejltis obvious that an inoperative.

As hereEQ-shown; 4 distance "above the This excess or surplus oi'wiil;

punip the air is,

suflicientto completely empty that valve a \\-l1 en. .tlie inlet port ofthat-device beencompletely I might be had in different ways. The m0stprobable Wag, however, would bethe lntrruption of t e air pressurewith'one of the upper receptacles full of oil. In that form of thedevice shown in Figsgl 'to- 4:, for example, if the airpressureyshould-be'suddenly cut oil with'a large'su plyof foilin thesecond receptacle, 23, or i ,in that form shown in Figs. 7 and 8 theexhaust valve should be opened and )ermit'the'exhaust of the air afterthe secon receptacle, et1-,-had filled, this intermediatereceptaclewo'uld re- 7 main-filled until the operation was resumed.

As'suchan interruption of pressure would probably be due to an accidentorto a shut 'down of the machinery for some cause the 7 interferewiththe ordinary operation'pf the pump. In the present instance, we haveprovided. the upper. cylinderhead of each of the upper receptacles witharelief ort, '46 whichis formed by a pipe 47 exten ing through.thecylinder head, qipported. thereby and extending into the receptacleIsome dlstance below the top thereof.

. .Secured' to the lower end of the piped? I is a block 48 having two ormore-ports communicating with 'tlie' end of the piped? and extendingupwardly throiigh the top of the. block 48. Thesefports -4;9 permit thefoil 1n :the receptacle to escape'thr 46 and fiowlbackinto.thegirellhenajsur plus of-oil enters the receptacle; lt is ne'c'es sary, hovever, to prevent ra e -tapestries: of the Oil or airthrough-theporti-Elfi during the normal operation of tli'edevie'eand'als'o 'to provide for the eseapejjo'f theair which may be containedinthe receptacle or m the discharge pipe-leading from the'lowerreceptacle" into the'same.'-

:When. the lower receptacle is being discharged into the upperreceptacle beiore the latter has been -emptied,- under thesecircumstances, there is usually more-' or less ail-in thefltopofthe-receptacle and the discharge pipe contains airf welhare, there fore;prorided in the upper end cif'the'ifecep- "'tacle an. air port 5 01eading into; 't he""dis -v charge pipe 251- of that receptacle, T

ceptncle through ashallow .recess' larid-islike "alve 52 which is of adiameter consid-, erably greaterthan the diameter oi the re ifpper part;of "the f "ingglbrwliiehiisfiiot ain'tight h his p'or't Thegtper non of,the, communicates with the. interiorpfithej ree and: 'itagvijr'ill-b';appare adapted tobe closed by means .of adislc.

oincollapsing and this'e-fio'at" cess 5 1. Mounted' on theie a Host .1

is connected with the valve-member 5Tb} means of'a'spring" 54. {Undernormal condb tions the positionsof the parts grill-be that shown in.Fig; 5. and the lowei'r-end of the sleeve53, which is secured to thefloat, will close .thep'orts 49. When;- however, 611 cm;

ters thereceptz'i'cle it rvillfirst forceoilt the 1 air contained in ,t.e 1 pperpart. of the re- ;relief port and ceptacle' through the {a willthen lift the heat ,53 ,gwhicl\"serree to open thqEortSFlStoq-perniitvthe flow. .of oil through't fese ports and. the port 46 andto close tl'ifewalt'e 5 2170 prevent f tlie further escape: of ai'rrvThe-oil will continue toesrap w y *th ol s l' h P t 46 Jln iI- Q later-hbeen redu ed to such ane'xtent that the air" pressure will force itthrough thedis; charge pipe -When air againenters the receptacletlir ggthe inlet i the next lcwerrecep e 'the o' evel will be loweredj and thenot will move downward and close the orts' 49;iherebyi preventing theescapeofair 'througlfthese portgibut,

the alve 52 r'cj'ill remain th'at portion-threof ..yvhichisexpoqedgtothe air' pressure in the-'receptacleris much in area tha'n' 'thegiortion which." is

the pressure o it-hieflelifrert 0 duringthe normal. operationvof the;pump the levehofthe-oil-inthe receptacle rises fir 49 this/results" inthe of a sinlllfqua'nthe discharging operation. FAssooiilao the i 19 in'this war-we ld e' oap re iable'diiference'inthe ca i cityof the amp.

I fiil1b'iinderstood-,;9 mum, that the "normal operation of the pump theair pressureholdsfltliegyhlvefl c10805 -"thitftlie air pressure 'is notreIieredIt hrOughQtheP r t 50. 1:whiifthi-exh ust .gva'lye. tofthe jlower-3,. 1 y chamber-jopensthe'preseiire again t the Ive-1;]

52 is relieved allowingthe s' ame to; drop so v in pipes-wit rvillbenoted thattheireliefportg 4:

ceptacl'e.flThis' id-desirable 1n animus u ear ngf f he d he eefi mpnto.t mit eseheret e illbe to oin understood fromth rided' I adisplaeementfj'piiiiip by means of which oil z'or other lluids may belifted step by step to. a. great height, th s 'acgcom de e ipt i '1 we:hav v .Pw'

, further, that the pump is of a very simple character, is-whollyautomatic in its operation'. and is provided with means to preventitliecoming inopcrativehecause of an overload. i

While we have shown'zand described two embodimentsof our invention itwill be un- -.derstood that'thishas -been.chosenfor thepurposes ofillustration only and that we do not desire to be limited to the detailsof Com structibn shown.and descrihed, for ob yjous modifications willoc'eur toa person sliilled in the art-. l f

Having thus fully described our. invention, what we' laiiii as new anddesire to secure by Lett'ers Patent, is

{ranged apart, the lowermost receptacle communicat- 1. A mechanism forelevating fluids comprisinga. plurality vof closed receptacles aroneabove the other and spaced ingnvith a source offiiiid supply, a conduit,leading from the lower portion of each lower receptacle to the upperportion of the next-higher receptacle, and: means for ad initting airunder pressure to the upper perfition of saidlowermost receptacle,whereby the air will first dischargethe fluid from,

said lowermostreceptacle through; one of said conduits to said nexthigher receptacle fluid through said discharge the fluid therefrom. 4

' 2. A mechanism for elevating fl'iiids com prising a plurality oireceptacles-arrange one above the other lowermost receptaclecommunicating-math a source offluid supply, a pipe connecting ea cli adjacentreceptaele, I whereby flurc'l' can be elevated from a lower to ahigher receptacle, means for admitting air. un'd er pressure to saidlower receptacle to elevate said "fluid to the next-receptacle,saidpipes being unobstructed to allow thegcompre'ssed air inthe lowermostreceptacle to follow the fluid-through the pipetoelevate the same a fromthe next receptacle to the one above.

charged flOIliSZl-lll line for controlling i 3. ln: a mechanism forelevating fluids, a receptacle, a discharge line lead ng fromsaidreceptacle, means for admitting com-' pressed ai vto saidreceptacle, means com I trolled by the rise-of fluid in said receptaclefor admitting compressed air thereto, and means located in saiddischarge line and operable by the. flu-id when it has-been disreceptacle and discharge the shutting ofi of the air to saidreceptacle-'- 4 In a. system fo'r raising 'fitilClS, a pluralityof'rece'ptacles, one above the other aiid'sp'acerl apart, portionsconnecting receptacles and so arranged that the'fiuid may he raised stepby step through the system by the iollo'wiiig action of compressed airthrough the connecting: portions and the the same off when the fluid hasbeen d-rangecl one abovethe other andand spaced apart. the:

.tonriecting each adj acentreceptacle" wherb higher. receptacle, meansfor ddmitti' under pressure to said lowermost re receptacles, means foradmitting compressed air to the lowermost receptacle, and meanscontrolling said air-admitting means toi'shut charged through thesystem.

' 5; Ina system for raisingifluida aplurality ot receptacles arrangeddne al'io e'theother, each lower receptacle having-portionscommunicating with the next upper"receptacle whereby. fluid may bedischarged step by step through the system by the following action ofair through the communiea'tiiig portions from; the lowermost recept vemeans for admitting and cXhau'st'ihgTa and from the lowermost're@@puwie;=-

g means for controlling the exhaustier said lowermost receptacle whenthefliiid been discharged from the system? 6. In a system for raisi nfiuids,afp'1-i1- rality of receptacles arranged oneabo ethe 35 other,each lower receptacle haviiig portioiis communicating with the nextupper"i eteptacle whereby fluid may 'be; disohargedjst'ep liy step,through'the system by tl'ie1f'cill6wing 'action'of air through the'cOiiiiiiimicat 9o ing portions from the lowermost receptacle, means foradmit-ting and'exhaustin'gair to and from thelowermostreceptacle,J'ineaiis- Controlling the exhaust for. "lower-;receptacl.e when the fluid has been dis{ eliiiged romthe system, and"'yalve-"eoi'it'rdlled exhausts for .the upper receptacles. '7: an amechanism for elevating" flii'ids compris ng a plurality ofreceptacles-"ar- 'apart,-the lowermost receptaclecoinmiiiii ing with asource-of fluid sup iy, 2n;pie. E5

fi'u-id can be elevated, from 'a lower to. elevate said fluid" the nextreceptliele, said pipes bein'g-.' unobstructed to" a ll m'v tl ieJvcompressed air in the 'lowennost'ar'eoeptacle to follow the fluidthrough thep'ipeto site vate, the same from thewnext receptacle theonesabo veymeans' for admitting pressed air to said lowermostreceptacle, valve controlledexhaustsin each-receptacld 1 8/ In amechanism for eleyati igfluids" plurality of receptacles arranged one"the other and of such capacity tl'ia upper receptacle can receivesubsta" ially. theentire discharge offl'uid from-the most receptacle, aconduit leading from-"t lower-portionkpf'eachilower reoe'pttic a t wupper portif of the'ne'xt higher fi' 'e'c p means for p itting-Qlairjunerflpress the lowermost receptacle whereby'E' the-iiir will firstdischarge: the fluid from she la-wee 253? lowermostreoepta'cle, a'deviceto cause l the adm oeptacle and the exhaust of the air -there- .which isbeing oration of sai the 4 with-a of fl'ui receptacle communicating withthe next o weight. I 10. A mechanism for elevating fluids co n p aplurality of closed receptacles arr i gfi one above the other and spacedapart, g the lowermost receptacle communicating. with a source of fluidsupply and each up-'- per receptacle communicating with the next owerreceptacle, an air conduit leading-to said lowermost reee taclo, .avdevice. controlled by the fall of uid in said-lowermost receptacle tointerrupt'the flow of -air throu h said conduit to said lowermostreceptacie, and means controlled by-the dia charge of the fluid-from theuppermost receptacle to control the exhaust of the air.

11. A 'nechanhm for elevating fluids comprisi a, plurality of closedreceptacles ar rangs one hove the other and spaced apart. -loverecegtacle communicating supply and each up- We! reoeptaclqan airconduit leading to imion of 'airfto said lowermost refronn'aweightmounted in said lowermost .rece'ptacle and operatively gconnectedwith lower receptacle,

' said device to control the operatioiii'thereof, and means controlledby the discharge of the fluid from the uppermost receptacle to controltlie'oper'ation of said weight to cause the air to be exhausted fromsaid lowermoat receptacle;

12. A mechanism for elevating fluids comprisi a plurality of closedreceptacles arran' one above the other and spaced apart,

the lowermost receptacle communicating 'with a source of fluid supplyand each upper l receptacle communicating with the next an air conduitleading to raid lowermost receptacle, a device 'tocause 'the'admissionof air'to-seid lowermost neceptacle and the exhaustof the air therefrom, means controlled by the fluid in said lowermost receptacle tocause the operation of said device,-a detent to prevent thesoperation ofsaid device, and. means controlled by the discharge of the fluid fromthe upcle to actuate said detentto pern ost rece release said evice andpermitcit tooperate- A mechanism for elevating fluids coinprim ran oneaboye the other and spaced apart,

' said lowermost rece rece tacle, a'devioe to in- 'lower ndet reoe taclea plurality of closed receptaclesara the lower-moi e, communicating withatohrce of flui supply and each upr receptacle with the next owerreceptacle, an air conduit leading to ptacle inlet and exhaust valvesconnected with said conduit, an actuating device for saidcolnbined inletand exhaust valves, a weight-mounted in said and connected with saidactuating evioa' to control the move ment thereof, a 'dete'nt, and adevice actut y' a rfli ild a from p to actuate (latent to e easeRaid-actuating device. j

g 14, A tor elevating fluids norm '1' 'a' plurality of closedreeeptaelea ar- I abovethe other and apaoed'apart,

at idiot-meet receptacle communicating with a-aouree-of'flui supply andeach upper receptacle oommunicatl with the next ower receptacle, an airconduit communicat ing with said lowermost receptacle, a discharge linecommunicating with and adapted to receive the fluid from the uppermostreceptacle, means controlledby the rise and fall of the fluid in saidlowermoet receptacle to connect said air conduit with a source of supplyfor air under pressure or with an exhaust port, a'fluid-moeptacleinterposed in said diacha controlled by the fluid in said receptacle topreventthe operation of said first-mentioned,

means to connectsaid air conduit with said exhaust 15, A mechanism forntviun fluids mreceptacles araplurality of one above the other andspaced pris rang: apart',.the lowermost rece cating -with a source offlui supply and each upper receptacle communicating with the ,next lowerreceptacle, an fair conduit com municating-with bald lowermost rece lo,a discharge line oommunicatingwrrit and adapted to receive the fluidfrom the uppermost receptacle, means controlled by the rise and fall ofthe fluid in said lowermost receptacle to connect said air conduit withcle communia .source of supply for air under pressure or" with anexhaust port, a fluid receptacleinterposed in said discharge line, andmeana con olled by the fluid in said 116 receptacle to prevent theoperation of saidfirat-mentioned:

means to interrupt theponnection but said air conduit and aid source ofair-sup:

P a c, c 16, A mechanian for elevating fluids comone aboveflie other andv prisin a plurality of rang the lowermost le communicating with asource of fluid supply and eaehupr reeeptaele'ooinmunicatmg with thenext ower'reeeptacle, an air conduit communi-' eating with saidlowermost clegj'a div" charge line communicating w and;

ed to receive the fluid from concluit with a source of supply for air vunder pressure or with an exhaust port,.and

.prising a plurali a comprising a r'no'v' bl l, able member of se 40comprising a movable member,-a fluid recep-- tacle interposed 1n saiddischargcllne to re. celvet the 01l passing through the same, a

valve to control the escepeof the fluid from I said receptacle, a floatconnected withsaid valve to operate the same,'a detent to engagethehnovable member of sai'rl'first-mentio ned means; an'cle connectionbetween said detent and said float to cause said cletent to be actuatedto release said movable member and permit the operation of said firstincrit-ionedmeans. r v

17. A mechanism for elevating fluids comprising a plurality of closedreceptaclesan; ranged one above the other and spacedaperhy recpcle,jan(l means t6" cause any surplus h' imay bra-delivered to saidnext" the lowermost receptacle coinmunic'atlng with a source of fluidsupply and eech'upperi receptacle communicating. avithy-the-=-next=lower recepf: role ":11 air fconduit'coxnrnuni eating. Wltll saidlowermostreceptecle a d1scharge line commumcatmg'jvlth; 31nd adaptg edto receivethe fluid'ffrom tlieuppermost saidlowerrr'ilast recept'leitpconnebt said air conduit with asource der pressure or with,

ceptacle interpose V to; receive the flu;

Sal-111e, said'recepta than its inletyei let, a detent' arra insai'd'iepe cacleg md I between 'seidfioat nd d'etent,- respective-l 18f. A;mechanism H ranged one 8.5.0 the" lowe'rmo's with asour ce'of'flreceptacle, Ico r'nm'uni ati'n' ing with said lowermo I.- receptacl'e;inlet-and exhaust valvesito-con tent arrangedto engage said u mou'nt'e'din said lowermost troftl l e flow 'of airto and from seid'a ir conduitan; actuating lever to causejtheoperatio'n of'seid velves,a;rmsextenclmg f101}1 the opposite sides of said lever, a'counterweightconnected 'With. one of; siucl armsg a -welght aole and connected withthe other of ii -swig 51mm pressure re enavale Qcejitaclecommunicating\vi'thth'e next '1' receptacle; means for {admitting'einpn I, 4 I;receptacle, -a' ;clis-'y charge llne comniunicetijng; with and adapt edto receivefthejfiuid from the uppermost;

fluid r'eliefi port without] open: (1 v relief port aft'entlie. sui'pl I;-ll

.' range 116w of fluid through the same 'andn iio iit mount'ed in saidreceptacle und operatiye y tQ-el'evate the fluid-from said'lmvermostre;I ceptacle. to the next higher receptacle and .for admitting air' fromsaid lowerzncst rem h-01c to said next higher receptacle ,to gdisclharge the fluid from said next higher ptaclej'o be discharged atthetop me a-co lowerrn eca se ommun cating 'sq l fcj. i; ed- 3 m): 5 e hupper-re i- 'ceptaol" communicatingwlth the next lower recept'a ole-5 man pressure; to; said" jouerhxostireceptai'cle to Yate fitheyfiuidfroinjsaid lowermost taclefi tl1i "he i "t- 'hi'g11er-;receptacle aadmitting air Efrem Seid lowermos i'e of receptacles arr'gin'gecl. theotli e and epacecl; apart; the

my. ofreeiiptacles otherand fsjpacede1 r' t he ceptac e.communicating" 1tl ta-ole to saidflnext hi ghenreceptacle t d1 I: w

charge the fluid-from said next big cepta'clei d HEX-l1 higher recepta lzh v ng an air relic-i portend, a" fluid reliefiporti-f' and a'fl'oa'tto fcloseg said air relief ort'an open said" fluid rel iiefinort and vto" c ose said;

e said: cirr s pri'sin- 'apluralit'y' of closed-g-flceptaclestare i oneabove-the other fund spaced apart, the lowermost receptaclecommunicating with a source of fluid supply, a coni duit leading fromthe lower portion of each 'said lower receptacle to the upper portion ofthe nexthigher receptacle, meansfor admitting air under pressure to theup er rtion of said lowermost receptacle, wliere ir the air willfirst-discharge the fluid from said lowermost receptacle throughlsaidconduit to next higherreceptacle and will then follow thefluid into saidnext higheriri'ieptacle and discharge the fluid therefrom; an

' -air relief port leading from-"the upper end of said nexthigher-receptacle to the discharge pipeof that riceptacle a fluid-reliefport comprislng a tube extending into the upper end of said receptacleand providodat its lower end with a 'block l aving ports commu- Qnicating therewith, acfloat mounted on said .the same from saidreceptacle, a device comprisin means controlled. by the rise and fall 0fluid in said receptacle for controlling said valve-controlled means, adischarge line leading from said receptacle,

' means to render said device inoperative. as

open the exhaust, and means controlled-by the fluid elevated to controlthe means forv rendering said device inoperative. e

24. In a mechanism for elevating fluids,

, a receptacle communicating with a source of fluid supply, an airconduit leading to said receptacle, a device to cause theadmismg fromthe upperend of said receptacle, a

sion of air to said receptacle and the exhaust of air therefrom, adischarge line from-said receptacle, means controlled by the fluid insaid receptacle to cause the operation of said device, a. detenttopreventt 1e operation of said device, and means controlled bythedischarge of fluid through said discharge line to actuate said detent torelease said device and permit it to operate. p

25. In a-mechanism for elevating fluids, a

' plurality of receptacle's,'e conduit leading from the lower portion ofeach lower recep tacle to the upper portion of thelnext higherreceptacle whereby the fluid may be ele-' vated step by step throughsaid conduits by 'air following the same therethrough, means foradmitting compressed air to the lonermost receptacle, automatic meansfor con trolling the admission of-compressed air thereto, and valvecontrolled exhaust-s mounted in each receptacle.

receptacles for allowing therefrom: and s'urplu binedair inletand'exhaust communicating with the lowermost receptacle, meanscontrolled by the rise and fall of fluid in this receptacle forcontrolling the admission of compressed air and the exhaust,valve-controlled exhausts in each of the upper receptacles, and meansfor delaying the operation of the exhaust in said lowermost receptacleuntil the fluid hasibeen elevated through the,

xmchlmism:

27.' In a' mechanism for elevating fluids,

plurality ctreceptacles, conduits connecting said receptacles, wherebythe fluid may be elevated therethrough step byste by the followingaction of air throu h to receptacles' and conduits, means or admittingand exhausting air to and from said lowermost receptacle, and meanswithin the-u per the exhaui 0 air Hid: 28. In ,a' device of the:character dc scribed, a receptacle adapted to 'receive a. fluid to beelevated, means forfadmitting compressed air to said receptacle, an airrelief port and a fluid relief port for said'reo u said fluid reliefport and to" close saidliliid relief rt without opening said air relief.port aR -l the surplus flui hasbeen discharged therefrom. Y

29; In a device of the character described, a receptacle adapted toreceive fluid to be elevated, meai1s for admitting compressed air tosaid'roceptacle, an air re ief port leadfluid relief .port .com rising atube extendavinga port communicating therewith, a

float mountedion said tubeand arranged to, nclose said port when in itslowermost position, itdisk like: valve arran ed above said float andadapted to close sai air relief portend; spring interposed between saidfloatand said air valve.

tures in presence of two witnesses;

- ELMER A. WATTS.

IRWIN L. .DUNN. Witnesses to signature of Watts:

' ALBERT K. SMI H, l rvrza H. MILLER; I Witnesses to signature of Dunn:Oa'ron G. Dunn, GERALDINE Excuses,

, ceptacle, and a float to close said sir-relief 4 port and,

It 'ing into the upper en of said receptacle and I provided, at itslower end with a' block In testimony whereof, we adix-oursigna

